The Mad Doctor is a 1935 novel by Australian author F. J. Thwaites, a melodramatic medical romance set in Africa.

[1][2] Thwaites based the novel on a story he heard from an old man while crossing the Atlantic in 1933.

When he gets out, finding himself a social outcast, he goes to work in the African jungle.

Although he only works among the native Africans, his reputation as a miracle worker in cases of paralysis spreads far and wide.

[5] During the production of this, Thwaites met the actress Jessica Harcourt, who he later married.